Mathematics Middle School

What is -5 1/2 - 4 1/4 + 6 3/4

Answers

Answer 1
I believe the answer is -3

Related Questions

58 people attend a banquet at Disney residents paid 13.00 and non residents paid 17.50. If Disney made 925.00 from ticket sales for the event how many residents and non residents attended

Answers

x= # of residents
y= # of non residents

QUANITY EQUATION
x+y= 58

COST EQUATION
$13.00x + $17.50y= $925.00

SOLVE FOR 1 VARIABLE
x+y= 58
subtract y from both sides
x= 58-y

SUBSTITUTE IN 2nd EQUATION
$13.00x + $17.50= $925.00
13(58-y) + 17.50y= 925.00
multiply 13 by all in parentheses
(13*58)+(13*-y)+17.50y= 925.00
754-13y+17.50y= 925.00
combine like terms
754+4.50y= 925.00
subtract both sides by 754
4.50y= 171
divide both sides by 4.50
y= 38 number of non residents

SUBSTITUTE TO FIND X
x+y= 58
x+38= 58
x= 20 number of residents

ANSWER: 20 residents and 38 non residents attended.

CHECK:
$13.00(20) + $17.50(38)= $925.00
260 + 665= 925
925 = 925

Hope this helps! :)

Answer:

$925.00

Step-by-step explanation:

Will give brainliest please help asap

Answers

Translation, rotation, reflection do not affect congruence. Dilation destroys congruence.

C
NC
C

Dennis can load the car in 28 min. If Andy helps him it takes 21 min to load the car how long will it take Andy alone?

Answers

let the load car = y , and Andy will take time x (min.) to load the car
So,
    The rate of Andy to load the car = y/x

And we given that: Dennis load the car in 28 min.
So,
    The rate of Dennis to load the car = y/28

If both are loading the car in time = t = 21 min
then:
         y = (y/x) t + (y/28) t     ⇒ divide all equation by y and substitute with t
∴      1 = (21/x) + (21/28)     ⇒ multiply all equation by 28x
        28x = 21*28 + 21x
        28x - 21 x = 588
        7x = 588
∴      x = 84 min.

Which mean Andy will take 84 min. to load the car alone.

what term should be added to create a perfect square trinomial ??

x^2+18x
i think it’s +81 but i’m not positive.

Answers

Yes you are correct. You take half of the x coefficient 18 to get 9, then you square 9 to get 81

x^2+18x+81 is a perfect square trinomial which factors to (x+9)^2

I’ve been looking at this for a while, and I can’t figure out the answers. Can someone walk me through it?

Answers

A , B and E - not a solution
C is a solution 6x+4x^3
D is a solution as well
It could be E,D,and B

Mr. Stuart has 12 girls and 10 boys in his math class. He writes each of their names on a separate sheet of paper and puts all of the names in a bag. He selects one name without looking. What is the probability that Mr. Stuart will select a boy’s name?

Answers

The probability of Mr. Stuart pulling a boys name is very likely. Although there is slightly more girls it is still as many boys.

What is 534.076 rounded to the nearest hundredth? A. 534.07 B. 534 C. 500 D. 534.08

Answers

its going to be obviously D

D 534.08 this would help

How much compound interest is earned on $2050 at 4% interest for 3 years, compounded annually? Give your answer in dollars and cents. Don’t forget to subtract P from A.

Answers

To solve for the amount + interest for compounding interest you will use this formula:
[tex]A = P ( 1 + \frac{r}{n}) ^{nt} [/tex]

Where A = Accrued amount
           P = Principal amount
           r = rate in decimal
           t = number of years
           n = compounding periods per unit of time
Your given:
P = $2050
r = 4% or 0.04
t = 3 years
n = 1 per yr
Now we insert that into your formula:
[tex]A = P ( 1 + \frac{r}{n}) ^{nt} [/tex]
[tex]A = 2050 ( 1 + \frac{0.04}{1}) ^{1.3} [/tex]
[tex]A = 2050 ( 1 + 0.04) ^{3} [/tex]
[tex]A = 2050 ( 1.04) ^{3} [/tex]
[tex]A = 2050 (1.124864 ) [/tex]
[tex]A = $2305.97 [/tex]

Now to get the interest just remember that:
I = A - P
I = $2,305.97 - $2,050
I = $255.97
So that is equal to 255 dollars and 97 cents


 $255.97 is the correct answer

Add the two expressions.

−6.3x+4 and 1.5x−6

Enter your answer, in simplified form, in the box.

Answers

-4.8x + -2 (don't combine those because aren't like terms)
Is your answer correct

14x-5(-2x+3)

Distributive and combine

Answers

Multiply parenthesis by -5

14x+10x-15 ( Collect the like terms)

The answer will be:
24x-15

what is the intersection points of f(x)=2x+7 and g(x)=x^2-1

Answers

intersecting means f(x)=g(x)
2x+7=x²-1
x²-2x-8=0
(x-4)(x+2)=0
x=4, or x=-2
when x=4, f(x)=g(x)=15
when x=-2, f(x)=g(x)=3
so the intersecting points are (4, 15) and (-2, 3)

I need help on Q #6-10 show all work please

Answers

6. 
x = x/a + b
x - b = x/a
ax - ab = x
ax - x = ab
x(a - 1) = ab
x = ab/(a - 1)

7. x/3 + x/a = 1
x + 3x/a = 3
ax + 3x = 3a
x(a + 3) = 3a
x = 3a/(a + 3)

8. x/a + bx = c/a
x(1/a + b) = c/a
x = c/a(1/a + b)
x = c/(ab + 1)

9. x/a - 2x = c
x(1/a - 2) = c
x = c/(1/a - 2)
x = ac/(1 - 2a)

10. x/a = b + 3x
x/a - 3x = b
x(1/a - 3) = b
x = b/(1/a - 3)
x = ab/(1 - 3a)

PLEASE HELP ME IM IN A BIG HURRY

The price of a pair of headphones is $49.99 before tax. Ron bought the headphones for a 50% discount. He then paid sales tax of 8% on the discounted price.

Part A: How much did Ron pay in sales tax? Show all work and steps in your solution.
Part B: What is the total amount that Ron paid for the headphones? Show all work and steps in your solution.

Answers

Part A:
Price before tax: $49.99
Discount: 50% of $49.99 = 50% * $49.99 = 0.50 * $49.99 = $25.00
Discounted price: $49.99 - $25.00 = $24.99
Tax on discounted price: 8% of $24.99 = 8% * $24.99 = 0.08 * $24.99 = $2.00

Part B:
Total price: $24.99 + $2.00 = $26.99

is 15\16 already in its simplest form?

Answers

Hi!

Yes, this fraction is in its simplest form because you cannot factor this anymore then it already is. I tried to factor out a 3 and a 2, but it still does not work.

The simplest form is [tex] \frac{15}{16} [/tex]

-ASIAX Frequent Answerer

On Saturday, you spend $33, give $15 to a friend, and receive $20 for mowing your neighbor’s lawn. You have $21 left. Use two methods to find how much money you started with that day.

Answers


21+20-15-33=x

x=-7

Hope this helped☺☺

If the circumference of a circle measures 3/2 π cm, what is the area of the circle in terms of π?

Answers

Final answer:

The area of the circle with a circumference of 3/2 π cm is 9/16 π cm².

Explanation:

The question is asking about finding the area of a circle when the circumference is given. The formula to find the circumference of a circle is C = 2πr, where C is the circumference and r is the radius of the circle. Given that the circumference is 3/2 π cm, we can use this information to find the radius.

From the circumference equation, r = C/2π = (3/2π)/ 2π = 3/4 cm. Having the radius, we can then use the formula for the area of a circle, which is A = πr². As a result, the area of the given circle is π(3/4)² cm² which simplifies to 9/16 π cm².

Learn more about Area of Circle here:

https://brainly.com/question/28642423

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While attending a college football game, you think you can guess the attendance within 10% of the actual value. If the announced attendance is 65,000, within what number of people would your guess have to be in order for you to support your claim?

Answers

Answer:

13,000 People

Step-by-step explanation:

65,000 (0.1) = 6500

6500 (2) = 13,000

You multiply by 2 to get 10% above or below the announced attendance.

Answer:

6,500

Step-by-step explanation:

If you think you can guess the attendance within 10% of the actual value, then your guess would have to be within 6,500 of the actual attendance of 65,000 in order for you to support your claim. This is because 10% of 65,000 is 6,500. So if your guess is within 6,500 of the actual attendance, then you can support your claim.

The sum of r and t is equal to 42. Let r = 25. What is the value of t?

Answers

r + t = 42
r = 25

Plug in 25 for r

(25) + t = 42

Isolate the t by subtracting 25 from both sides

t + 25 (-25) = 42 (-25)
t = 42 -25
t = 17

Hope this helps
Since r = 25, t must equal a number that, when added to 25, equals 42.

42 - 25 = 17. t must equal 17.

17 + 25 = 42.

18m-9v+6v-7m hope you can help

Answers

Here, you have to combine like terms. So, it is 11m-3v.
by combining 18m and -7m you get 11m. then you combine -9v and 6v to get -3v. the answer is 11m-9v.

To make an ice-cream cone, employees at an ice-cream shop completely fill the cone and then add one scoop of ice cream on top. The cone has a height of 6 inches and a diameter of 2 inches. To the nearest cubic inch, how much ice cream is in the cone before the scoop is added on the top?
A 6 in³
B 19 ​in³​
C 25 ​in³​
D 75 ​in³​

Answers

It is B I believe have a nice day

Answer:Its probably A

Step-by-step explanation:

A carpenter is creating a circular wooden table with a radius of 4 feet and needs to know the area of the table to purchase the correct amount of stain to finish it.

What is the area of the table?

Use 3.14 for π .

Enter your answer, as a decimal, in the box.

(?) ft²

Answers

Answer: The area of the circular wooden table = 50.24 ft²

Step-by-step explanation:

Given: The radius of the circular table = 4 feet

We know that area of a circle is given by :-

[tex]\text{Area}=\pi r^2[/tex]

Therefore, the area of circular wooden table is given by :-

[tex]\text{Area}=3.14(4)^2\\\Rightarrow\ 3.14\times16\\\Rightarrow\text{Area=}50.24\ ft^2[/tex]

The area of the circular wooden table = 50.24 ft²

Answer: 50.24

Step-by-step explanation:

We know: The radius = 4 feet and that the area of a circle = πr^2

Next: (π) 3.14 (4)^2

which we can simplify to be 3.14 * 16

= 50.24

(just took the test hope this helped)

What is the area of the figure?
Please explain how you got your answer!
(the missing length is 25)

Answers

 232.5 (Triangle)
+320.  (Rectangle)
=------------
342.5 (area)

The graph of a system of two linear equations has no solution . What is true about the lines

Answers

They are parallel lines.
They are parallel. This means that they will never intersect and they have the same slopes.

The cost of 7 drinks is $16.38. What is the cost of each drink?

$1.54
$1.88
$2.34
$2.73

Answers

the answer to thus question is $2.34

The cost of each drink if 7 drinks cost $16.38 is $2.34.

What is Division?

Division is one of the four fundamental arithmetic operations, which tells us how the numbers are combined to form a new one.

Given that the cost of 7 drinks is $16.38. Therefore, the cost of each of the drink will be:

Cost of each drink = Cost of all the drinks / Number of drinks

                               = $16.38 / 7

                               = $2.34

Hence, the cost of each drink is $2.34.

Learn more about Division:

https://brainly.com/question/369266

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456 000 has been rounded to the nearest thousand. What was the smallest possible number this could have been?

Answers

The smallest possible number could have been 455,500

Answer:

The smallest possible number this could have been = 455500

Step-by-step explanation:

456000 has been rounded to the nearest thousand.

If the value is more than 456500 the value rounded to the nearest thousand is 457000.

If the value is less than 455500 the value rounded to the nearest thousand is 455000.

In between 455500 and 456500 the value rounded to the nearest thousand is 456000.

So,  The smallest possible number this could have been = 455500

Combine any like terms in the expression. If there are no like terms, rewrite the expression. 4s^2 + t^3 + 3s^2 – 7s^2

Answers

[tex] 4s^2 + t^3 + 3s^2 - 7s^2[/tex]
=[tex] t^3 [/tex]

What is the value of h when the function is converted to vertex form?

Answers

y = x^2-14x+29
a = 1, b=14, c =29

h = b/2a
h = 14 / 2*1 = 14/2 = 7
 h = 7

If mJK=(7x-39) and mML)=87, find x

Answers

If two chords of a circle are congruent, then their intercepted arcs are congruent
7x-39 = 87
7x = 87 + 39
7x = 126
x = 126/7
x = 18

The value of X calculeted in the circle is equal to 18.

What is the 2 parallel lines?

Parallel lines are basically two straight lines that do not have a point in common. In other words, they are two lines that do not meet, but that necessarily have the same direction.

If two chords of a circle are paralles, then their intercepted arcs are congruent:

[tex]7x-39 = 87\\7x = 87 + 39\\7x = 126\\x = 126/7\\x = 18[/tex]

See more about circle at brainly.com/question/11833983

the sun of 3 times a number and 5 is 2 times the number plus 15. what is half the number

Answers

3x+5=2x+I5
-5. -5
3x. =2x+10
-10 -10
3x-10=2x
-3x. -3x
-10= -1x
-1 -1
10=x

The data below shows the average of text messages a group of students sends per day. Which histogram could represent the data?

Answers

The answer should be B
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